In situ water removal in a polymeric membrane reactor during catalysis
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초록
내용
Water, a by-product of many chemical reactions, is detrimental in many ways by lowering the target-product yield. Although water removal methods using absorbents, inorganic membranes, and extra dehydration reactions have been suggested, there is a pressing demand for stable and simple system that can selectively remove water in wide range of reaction temperature. We report on a thermally rearranged polybenzoxazole hollow fiber membrane with water permselectivity and stability at reaction temperatures up to 400 °C. By using a reactor with the membrane, common reaction engineering challenges, equilibrium limits, catalyst deactivation, and water-related side reactions have been overcome.